FIX: Simultaneous Calls to CoCreateInstance Are Blocked in Windows 2000

This article was previously published under Q275168
This article has been archived. It is offered "as is" and will no longer be updated.
When a COM server object is registered as single use and is also using the single threaded apartment model, attempts by a client to create a new instance may get delayed.
Windows 2000 sends a create instance request to a previously created instance of the server, even though it was created as single use. If the server is busy (out of its message loop) it could cause a delay.
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.

Article ID: 275168 - Last Review: 10/26/2013 08:20:00 - Revision: 4.0

Microsoft Windows 2000 Server, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Professional Edition

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